2010 Design of Medical Devices Conference Abstracts

In-Vitro Tests of a Rapid, Stable-Temperature Recharging System for Implantable Batteries OPEN ACCESS

[+] Author and Article Information
Leon Radziemski, Arthur Denison, Floyd Dunn, Steve Bell, Eugene Cochran

Piezo Energy Technologies

J. Med. Devices 4(2), 027523 (Aug 10, 2010) (1 page) doi:10.1115/1.3443227 History: Published August 10, 2010

In this paper, the authors report in-vitro tests of an ultrasound system and method of wirelessly transmitting significant amounts of energy into the human body for the purpose of recharging implantable batteries. We demonstrate the complete charging of Li-ion batteries with energy capacities of 35mAh, 200mAh, and 600mAh through several types of animal tissue while keeping the temperature rise of the tissue and piezoelectric receiver below the desired 2°C human safety limit recommended by FDA medical device guidelines. Given these encouraging results, it is logical to conclude that the rapidly growing neurostimulator market is a desirable and appropriate target for introduction of this novel recharging method.


We acknowledge the support of the National Institutes of Health—National Institute of Bioimaging and Bioengineering under Grant No. 1 R41 EB007421-01A1.

Copyright © 2010 by American Society of Mechanical Engineers
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